There’s an $18 million house on the market just a few miles east of the Las Vegas strip — but you have to look 26 feet underground to find it. A nearly 15,000-square-foot bunker designed to look like the world above is on the market at 3970 Spencer St.

This luxury subterranean house isn’t your typical bunker. The underground space, which is attached to a smaller house at surface level, features a family home decked out in ’70s style, as well as a mock backyard, a pool and a guest house, according to the home’s real estate listing. There’s no natural sunlight, but the home’s faux-sky mimics morning, noon and night — complete with sparkling stars — depending on time of day. As for nature, murals of green pastures, forests and mountains decorate the walls.

Since then, the five-bedroom, six-bathroom home has become something of a Las Vegas legend — so much so that it was the most-viewed home on Realtor.com last week. The home’s listing agent, Stephan LaForge, says he’s gotten a lot of calls in the two weeks the home has been on the market, but not necessarily from qualified buyers. “There’s been lot of interest in the sense that people want to look at it,” LaForge says. “It’s like an attraction, like going to Disneyland.”

That said, the average person might find going to Disneyland a little more affordable than buying the home, which last sold for $1.15 million in 2014. “$18 million sounds crazy based on previous sales costs,” LaForge says, “but if you were going to build one today, think about digging the hole and waterproofing the concrete.”